This plush trilobite represents ancient arthropods that crawled around the bottom of shallow seas for 300 million years. Fossilized trilobites serve as index fossils, which enable geologists to date the age of the rocks in which they are found.
This plush trilobite represents ancient arthropods that crawled around the bottom of shallow seas for 300 million years. Fossilized trilobites serve as index fossils, which enable geologists to date the age of the rocks in which they are found.